Deklinationen
| Singular | Plural | |
|---|---|---|
| Nominativ | singular sg perennitas | plural pl perennitates |
| Genitiv | singular sg perennitatis | plural pl perennitatum |
| Dativ | singular sg perennitati | plural pl perennitatibus |
| Akkusativ | singular sg perennitatem | plural pl perennitates |
| Ablativ | singular sg perennitate | plural pl perennitatibus |
| Vokativ | singular sg perennitas | plural pl perennitates |
